1 files changed, 44 insertions, 0 deletions
diff --git a/tests/auto/cmake/tst_qaddpreroutine/tst_qaddpreroutine.cpp b/tests/auto/cmake/tst_qaddpreroutine/tst_qaddpreroutine.cpp
new file mode 100644
index 0000000000..21394648c0
--- /dev/null
+++ b/tests/auto/cmake/tst_qaddpreroutine/tst_qaddpreroutine.cpp
@@ -0,0 +1,44 @@
+// Copyright (C) 2021 zccrs <zccrs@live.com>, JiDe Zhang <zhangjide@uniontech.com>.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include <QTest>
+#include <QGuiApplication>
+
+class tst_qAddPreRoutine : public QObject
+{
+    Q_OBJECT
+
+public:
+    static void initMain()
+    {
+        // The purpose of this use case is indeed to test "qAddPreRoutine", but
+        // as you can see, there is nowhere to call "qAddPreRoutine". Please see
+        // the following two lines of code, which set the "QT_QPA_PLATFORM_PLUGIN_PATH"
+        // and "QT_QPA_PLATFORMTHEME" environment variables that a new platform
+        // theme plugin will be loaded, and the Q_COREAPP_STARTUP_FUNCTION macro
+        // is used in this plugin, which will cause "qAddPreRoutine" to be called
+        // indirectly in the Q*Application class when load the platform theme plugin.
+        // See the "plugin.cpp" file.
+#ifndef Q_OS_ANDROID // The plug-in is in the apk package, no need to specify its directory
+        qputenv("QT_QPA_PLATFORM_PLUGIN_PATH", QT_QPA_PLATFORM_PLUGIN_PATH);
+#endif
+        qputenv("QT_QPA_PLATFORMTHEME", "QTBUG_90341");
+    }
+
+private slots:
+    void tst_QTBUG_90341()
+    {
+#ifdef Q_OS_ANDROID
+        QSKIP("Android can't load the platform theme plugin this test needs, see QTBUG-92893");
+#endif
+        QVERIFY2(qEnvironmentVariableIsSet("QTBUG_90341_ThemePlugin"),
+                 "The \"QTBUG_90341\" theme plugin not loaded.");
+        // This "test_function_call_count" property is assigned in the "QTBUG_90341" plugin.
+        // See the "plugin.cpp" file.
+        QCOMPARE(qApp->property("test_function_call_count").toInt(), 1);
+    }
+};
+
+QTEST_MAIN(tst_qAddPreRoutine)
+
+#include "tst_qaddpreroutine.moc"